Tenoning-machine



L. BRUUN.

TENONING MACHINE. APPLICATION FILED JAN. 6, 1920- 1,382, 2 I PatentedJune 28, 1921.

' 3 SHEETS-SHEET l.-

Van/752m lars' rwuwv Umrso srArss TENONING-MACHINE.

. panying drawings in which:

Figure 1 is a side view of the machine.

Fig. 2 is a front view of the machine.

Fig. 3 shows a portion of the machine partially in section. V

Fig. 4 is a plan view of a portion of the machine with some detailsshown'in section.

' Figs. 3 and 4 are drawn up on a somewhat larger scale than Figs. 1 and2. v

-The machine is of the known type with two-horizontal and two verticalcutter-spindles which are driven by belt transmissions independently; ofeach other.

The machin comprises a frame 1 which consists of a base part, and a topframe connected to this. This top frame has a'vertical dove-tail guidealong which the two slides 2- and '-3 may be raised. Each of the saidsli'descarries a horizontal cutter-spindle. -Up0n the top frame an arm 5is arranged which carries the screw spindle 6-,' which supports theslides 2'and -3 and by means of which these slides may be adjusted. Thespindle 6 is equipped with a hand-wheel 7-, which is threaded upon thespindle and may rotate in the head or sleeve 8-o'f the arm 5-, but isprevented from vertical movement in relation to this by means of a nut9-, which is threaded upon the lengthened nave of'the hand-wheel andlies close up to the lower side of the head -8-. The spindle --6 isprevented from rotating by means of a key 48-, which engages a groove inthe spindle so that this may be raised and lowered freely.

The slide -2- is connected to the spindle -6 by means of the hand-wheel-11- which is screwed down upon the spindle and which is seated betweenashoulder -13 on the slide and a ring -12- rigidly connected to theslide.

The slide 3 is connected to the spindle Specification of Letters Patent.Patented J une Application filed January 6, 1920. Serial No. 349,744.

shoulder 13..on the slide.

PATENT oFF cE.

LnnsYBRUUN, or 'SKIEN, NORWAY.

6 by means of the hand-wheel 14- which above is seated against the *ring15, whlch is rigidlyiconnectedto the slide, and below is seated againstthe 'It will be understood that a rotation of the hand-wheel 7- willcause both the slides 2' and --3 to move upward 'or downward so thattheir mutual distance isnot altered, but when the hand-wheels 11-' and-l4-- are rotated,'the slides -2 and -3 will be adjusted in relationtoeach tally in relation'to the slides. The spindles -40-' and -4l' aredriven bymeans of i the two belt pulleys 38-, To limit the adjustingmovement the slides 2 and 3+ are formed with vertical slots -17-' and19. through which project pins 18 fixed to'the frame 1. The hand-wheels1l and -14lare accessible through openings 16 in the slides. I

a In the upper portion ofv frame lare formed two. pair of hori'zontaldovetail guides --26 in which are mounted the two slides-24: for theupper and lower verti-: call cutter spindles43' and .45; .EThe slidesare preferably strengthened by ribs 25.

The lateral adjustment of each of these spindles is effected by means ofa threaded spind1e2l-, which engages a nut -22,

which is rigidly connected to the slide -24.. The spindles 21-'-, whichin a suitable way are prevented from axial movement, carry hand-wheels-20-. The

rotation of these hand-wheels will effect the displacement of theslides. In the slides --Q4.- the vertical cutter-spindles -43 and 45 aremounted in cylindrical sleeves -43 and 45 having threaded portions andprovided with hand-wheels -48 and 45 so that theyican be rotated andhence adjusted axially. The

spindles 43 and -45- are driven by belt-pulleys 42 and 44. on theirouter ends.

Thework piece is placed upon a table 3 6- provided with depending rails'34- and The cutters being adjustable, a special adjusting mechanism forascertained the nature of my said invention and in What manner the sameis to be performed, I declare that what I claim is 1. In a tenoningmachine, thecombination of a frame provided with-a guide; a

slide adjustably engaged with said guide and having an opening, aportion of which is threaded; a cylindrical sleeve projecting throughsaid: opening and adapted to move bodily with the, slide, said sleevehaving'an externally threaded portion which is engaged with. thethreaded portion of the opening; means connected'to said sleeve to Vefi'ect its rotation and consequent endwise movement throughsaidopening; a cutter spindle rotatably mounted in the sleeve to moveendwise therewith; means carried by said spindle for- .eifecting itsrotation; and means independent of the sleeve-adjusting means. foreffecting adjustmentof the slide.

2. In a'tenoning machine, the'combination of a frame provided with avertical 7 guide; upper and lower slides adjustably engaged'wlth saidguide; a horizontally-adjustable cutter. spindle mounted in each slide;a vertical spindle passing loosely through both slides and having upperand lower threaded portions;means forholding the vertical. spindleagainst rotation; a rotatable hand-wheel carried by said frame andthreaded on said vertical spindle to efiect its endwise adjustment; anda pair of handwheels carried by said slides andengaged with the adjacentthreaded portions of the vertical spindle to effect verticaladjustment Vof either slide independently of and rela' tively to the other slide;the second-named hand-wheels connecting said slides ,to the verticalspindle for simultaneous vertical movement in either directionconsequent upon the movementiof said spindle by the first-namedhand-wheel. V i

3. In a tenoning machine, the combina tion of a frame provided with avertical guide; upper and lower slides vadjustably engaged; with saidguide, each-slide having both a vertical and a horizontal slot; ahorizontally adjustable cutter sp ndle mounted in each slide; avertical-spindle passing loosely through both slides and having upperand; lower threaded portions;

means for holding the vertical spindle against rotation; a rotatablehand-wheel carried'by said fra e and h eadedon said vertical spindle toeffect itsenfdwise-adjnstment; a pair ofhand-wheels carried; bysaidslides and, extending outwardly through said horizontal slots to permittheirman-ipulation. from outside the machine; said hand,- r

Wheels being engaged with the adjacent threaded portions of thevertical- "spindle=to efi'ect vertical adjustment of either slide inedependently of andrelatively to the other slide, and acting to connectboth slides to the vertical spindle to move vertically in.

unison therewith during the movement of said spindle by thefirst-named'handewheel; and fixed stops carried by the vframe andprojecting through the vertical slots in "the slides to limit theirvertical movement in either direction.

cember, A. D,., 1919.

Witnesses:

Axnn LAHN, J Hans; HAL

Signed at Christiania this 6th. day 0f-D 1 re imes"

